doc: update go playground demo

README.md

@@ -272,7 +272,7 @@ import "github.com/duke-git/lancet/v2/convertor"
     [[play](https://go.dev/play/p/j4DP5dquxnk)]
 -   **<big>CopyProperties</big>** : copies each field from the source struct into the destination struct.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/convertor.md#CopyProperties)]
-    [[play](https://go.dev/play/p/FOVY3XJL-6B)]
+    [[play](https://go.dev/play/p/oZujoB5Sgg5)]
 
 ### 6. Cryptor package is for data encryption and decryption.
 
@@ -567,14 +567,20 @@ import "github.com/duke-git/lancet/v2/fileutil"
     [[play](https://go.dev/play/p/s74a9iBGcSw)]
 -   **<big>IsZipFile</big>** : checks if file is zip file or not.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#IsZipFile)]
+    [[play](https://go.dev/play/p/9M0g2j_uF_e)]
 -   **<big>FileSize</big>** : return file size in bytes.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#FileSize)]
+    [[play](https://go.dev/play/p/H9Z05uD-Jjc)]
 -   **<big>MTime</big>** : return file modified time(unix timestamp).
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#MTime)]
+    [[play](https://go.dev/play/p/s_Tl7lZoAaY)]
 -   **<big>Sha</big>** : return file sha value.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#Sha)]
+    [[play](https://go.dev/play/p/VfEEcO2MJYf)]
 -   **<big>ReadCsvFile</big>** : read file content into slice.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil.md#ReadCsvFile)]
+    [[play](https://go.dev/play/p/OExTkhGEd3_u)]
+
 
 ### 10. Formatter contains some functions for data formatting.
 
@@ -845,8 +851,10 @@ import "github.com/duke-git/lancet/v2/netutil"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#UploadFile)]
 -   **<big>IsPingConnected</big>** : checks if can ping the specified host or not.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#IsPingConnected)]
+    [[play](https://go.dev/play/p/q8OzTijsA87)]
 -   **<big>IsTelnetConnected</big>** : checks if can if can telnet the specified host or not.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/netutil.md#IsTelnetConnected)]
+    [[play](https://go.dev/play/p/yiLCGtQv_ZG)]
 
 ### 15. Random package implements some basic functions to generate random int and string.
 
@@ -984,11 +992,13 @@ import "github.com/duke-git/lancet/v2/slice"
     [[play](https://go.dev/play/p/CBKeBoHVLgq)]
 -   **<big>FindBy</big>** : iterates over elements of slice, returning the first one that passes a truth test on predicate function.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FindBy)]
+    [[play](https://go.dev/play/p/n1lysBYl-GB)]
 -   **<big>FindLast<sup>deprecated</sup></big>** : return the last item that passes a truth test on predicate function.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FindLast)]
     [[play](https://go.dev/play/p/FFDPV_j7URd)]
 -   **<big>FindLastBy</big>** : iterates over elements of slice, returning the last one that passes a truth test on predicate function.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice.md#FindLastBy)]
+    [[play](https://go.dev/play/p/8iqomzyCl_s)]
 -   **<big>Flatten</big>** : flattens slice one level.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice.md#Flatten)]
     [[play](https://go.dev/play/p/hYa3cBEevtm)]
@@ -1314,16 +1324,23 @@ import "github.com/duke-git/lancet/v2/strutil"
     [[play](https://go.dev/play/p/og47F5x_jTZ)]
 -   **<big>StringToBytes</big>** : converts a string to byte slice without a memory allocation.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#StringToBytes)]
+    [[play](https://go.dev/play/p/7OyFBrf9AxA)]
 -   **<big>BytesToString</big>** : converts a byte slice to string without a memory allocation.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#BytesToString)]
+    [[play](https://go.dev/play/p/6c68HRvJecH)]
 -   **<big>IsBlank</big>** : checks if a string is whitespace or empty.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#IsBlank)]
+    [[play](https://go.dev/play/p/6zXRH_c0Qd3)]
 -   **<big>HasPrefixAny</big>** : checks if a string starts with any of an array of specified strings.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#HasPrefixAny)]
+    [[play](https://go.dev/play/p/8UUTl2C5slo)]
 -   **<big>HasSuffixAny</big>** : checks if a string ends with any of an array of specified strings.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#HasSuffixAny)]
+    [[play](https://go.dev/play/p/sKWpCQdOVkx)]
 -   **<big>IndexOffset</big>** : returns the index of the first instance of substr in string after offsetting the string by `idxFrom`.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil.md#IndexOffset)]
+    [[play](https://go.dev/play/p/qZo4lV2fomB)]
+
 
 ### 21. System package contain some functions about os, runtime, shell command.
 

README_zh-CN.md

@@ -271,7 +271,7 @@ import "github.com/duke-git/lancet/v2/convertor"
     [[play](https://go.dev/play/p/j4DP5dquxnk)]
 -   **<big>CopyProperties</big>** : 拷贝不同结构体之间的同名字段。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/convertor_zh-CN.md#CopyProperties)]
-    [[play](https://go.dev/play/p/FOVY3XJL-6B)]
+    [[play](https://go.dev/play/p/oZujoB5Sgg5)]
 
 ### 6. cryptor 加密包支持数据加密和解密，获取 md5，hash 值。支持 base64, md5, hmac, aes, des, rsa。
 
@@ -566,14 +566,20 @@ import "github.com/duke-git/lancet/v2/fileutil"
     [[play](https://go.dev/play/p/s74a9iBGcSw)]
 -   **<big>IsZipFile</big>** : 判断文件是否是zip压缩文件。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#IsZipFile)]
+    [[play](https://go.dev/play/p/9M0g2j_uF_e)]
 -   **<big>FileSize</big>** : 返回文件字节大小。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#FileSize)]
+    [[play](https://go.dev/play/p/H9Z05uD-Jjc)]
 -   **<big>MTime</big>** : 返回文件修改时间(unix timestamp)。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#MTime)]
+    [[play](https://go.dev/play/p/s_Tl7lZoAaY)]
 -   **<big>Sha</big>** : 返回文件sha值。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#Sha)]
+    [[play](https://go.dev/play/p/VfEEcO2MJYf)]
 -   **<big>ReadCsvFile</big>** : 读取csv文件内容到切片。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/fileutil_zh-CN.md#ReadCsvFile)]
+    [[play](https://go.dev/play/p/OExTkhGEd3_u)]
+
 
 ### 10. formatter 格式化器包含一些数据格式化处理方法。
 
@@ -844,8 +850,10 @@ import "github.com/duke-git/lancet/v2/netutil"
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#UploadFile)]
 -   **<big>IsPingConnected</big>** : 检查能否ping通主机。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#IsPingConnected)]
+    [[play](https://go.dev/play/p/q8OzTijsA87)]
 -   **<big>IsTelnetConnected</big>** : 检查能否telnet到主机。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/netutil_zh-CN.md#IsTelnetConnected)]
+    [[play](https://go.dev/play/p/yiLCGtQv_ZG)]
 
 ### 15. random 随机数生成器包，可以生成随机[]bytes, int, string。
 
@@ -983,11 +991,13 @@ import "github.com/duke-git/lancet/v2/slice"
     [[play](https://go.dev/play/p/CBKeBoHVLgq)]
 -   **<big>FindBy</big>** : 遍历切片的元素，返回第一个通过 predicate 函数真值测试的元素。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FindBy)]
+    [[play](https://go.dev/play/p/n1lysBYl-GB)]
 -   **<big>FindLast<sup>deprecated</sup></big>** : 从头到尾遍历 slice 的元素，返回最后一个通过 predicate 函数真值测试的元素。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FindLast)]
     [[play](https://go.dev/play/p/FFDPV_j7URd)]
 -   **<big>FindLastBy</big>** : 从遍历slice的元素，返回最后一个通过predicate函数真值测试的元素。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#FindLastBy)]
+    [[play](https://go.dev/play/p/8iqomzyCl_s)]
 -   **<big>Flatten</big>** : 将多维切片展平一层。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/slice_zh-CN.md#Flatten)]
     [[play](https://go.dev/play/p/hYa3cBEevtm)]
@@ -1316,16 +1326,22 @@ import "github.com/duke-git/lancet/v2/strutil"
     [[play](https://go.dev/play/p/og47F5x_jTZ)]
 -   **<big>StringToBytes</big>** : 在不分配内存的情况下将字符串转换为字节片。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#StringToBytes)]
+    [[play](https://go.dev/play/p/7OyFBrf9AxA)]
 -   **<big>BytesToString</big>** : 在不分配内存的情况下将字节切片转换为字符串。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#BytesToString)]
+    [[play](https://go.dev/play/p/6c68HRvJecH)]
 -   **<big>IsBlank</big>** : 检查字符串是否为空格或空。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#IsBlank)]
+    [[play](https://go.dev/play/p/6zXRH_c0Qd3)]
 -   **<big>HasPrefixAny</big>** : 检查字符串是否以指定字符串数组中的任何一个开头。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#HasPrefixAny)]
+    [[play](https://go.dev/play/p/8UUTl2C5slo)]
 -   **<big>HasSuffixAny</big>** : 检查字符串是否以指定字符串数组中的任何一个结尾。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#HasSuffixAny)]
+    [[play](https://go.dev/play/p/sKWpCQdOVkx)]
 -   **<big>IndexOffset</big>** : 将字符串偏移idxFrom后，返回字符串中第一个 substr 实例的索引。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/strutil_zh-CN.md#IndexOffset)]
+    [[play](https://go.dev/play/p/qZo4lV2fomB)]
 
 ### 21. system 包含 os, runtime, shell command 的相关函数。
 

convertor/convertor.go

@@ -321,7 +321,7 @@ func DeepClone[T any](src T) T {
 
 // CopyProperties copies each field from the source into the destination. It recursively copies struct pointers and interfaces that contain struct pointers.
 // use json.Marshal/Unmarshal, so json tag should be set for fields of dst and src struct.
-// Play: todo
+// Play: https://go.dev/play/p/oZujoB5Sgg5
 func CopyProperties[T, U any](dst T, src U) error {
 	dstType, srcType := reflect.TypeOf(dst), reflect.TypeOf(src)
 

docs/convertor.md

@@ -757,7 +757,11 @@ func main() {
 
     indicatorVO := IndicatorVO{}
 
-    CopyProperties(&indicatorVO, indicator)
+    err := convertor.CopyProperties(&indicatorVO, indicator)
+
+    if err != nil {
+        return
+    }
 
     fmt.Println(indicatorVO.Id)
     fmt.Println(indicatorVO.Ip)

docs/convertor_zh-CN.md

@@ -756,7 +756,11 @@ func main() {
 
     indicatorVO := IndicatorVO{}
 
-    CopyProperties(&indicatorVO, indicator)
+    err := convertor.CopyProperties(&indicatorVO, indicator)
+
+    if err != nil {
+        return
+    }
 
     fmt.Println(indicatorVO.Id)
     fmt.Println(indicatorVO.Ip)

docs/fileutil.md

@@ -522,7 +522,7 @@ import (
 )
 
 func main() {
-    isZip := IsZipFile("./zipfile.zip")
+    isZip := fileutil.IsZipFile("./zipfile.zip")
     fmt.Println(isZip)
 }
 ```

docs/fileutil_zh-CN.md

@@ -522,7 +522,7 @@ import (
 )
 
 func main() {
-    isZip := IsZipFile("./zipfile.zip")
+    isZip := fileutil.IsZipFile("./zipfile.zip")
     fmt.Println(isZip)
 }
 ```

docs/netutil.md

@@ -922,7 +922,7 @@ import (
 )
 
 func main() {
-    err := DownloadFile("./lancet_logo.jpg", "https://picx.zhimg.com/v2-fc82a4199749de9cfb71e32e54f489d3_720w.jpg?source=172ae18b")
+    err := netutil.DownloadFile("./lancet_logo.jpg", "https://picx.zhimg.com/v2-fc82a4199749de9cfb71e32e54f489d3_720w.jpg?source=172ae18b")
 
     fmt.Println(err)
 }

docs/netutil_zh-CN.md

@@ -924,7 +924,7 @@ import (
 )
 
 func main() {
-    err := DownloadFile("./lancet_logo.jpg", "https://picx.zhimg.com/v2-fc82a4199749de9cfb71e32e54f489d3_720w.jpg?source=172ae18b")
+    err := netutil.DownloadFile("./lancet_logo.jpg", "https://picx.zhimg.com/v2-fc82a4199749de9cfb71e32e54f489d3_720w.jpg?source=172ae18b")
 
     fmt.Println(err)
 }

docs/strutil.md

@@ -968,6 +968,7 @@ func main() {
 
     fmt.Println(result1)
     fmt.Println(result2)
+
     // Output:
     // hello world
     // 你好😄
@@ -998,6 +999,7 @@ func main() {
 
 	fmt.Println(result1)
 	fmt.Println(result2)
+
 	// Output:
 	// [97 98 99]
 	// true
@@ -1027,6 +1029,7 @@ func main() {
 	result := strutil.BytesToString(bytes)
 
 	fmt.Println(result)
+
 	// Output:
 	// abc
 }
@@ -1058,6 +1061,7 @@ func main() {
 	fmt.Println(result1)
 	fmt.Println(result2)
 	fmt.Println(result3)
+
 	// Output:
 	// true
 	// true
@@ -1089,6 +1093,7 @@ func main() {
 
 	fmt.Println(result1)
 	fmt.Println(result2)
+
 	// Output:
 	// true
 	// false
@@ -1119,6 +1124,7 @@ func main() {
 
 	fmt.Println(result1)
 	fmt.Println(result2)
+
 	// Output:
 	// true
 	// false
@@ -1157,6 +1163,7 @@ func main() {
 	fmt.Println(result3)
 	fmt.Println(result4)
 	fmt.Println(result5)
+    
 	// Output:
 	// 12
 	// 1

docs/strutil_zh-CN.md

@@ -968,6 +968,7 @@ func main() {
 
     fmt.Println(result1)
     fmt.Println(result2)
+    
     // Output:
     // hello world
     // 你好😄
@@ -1027,6 +1028,7 @@ func main() {
 	result := strutil.BytesToString(bytes)
 
 	fmt.Println(result)
+
 	// Output:
 	// abc
 }
@@ -1058,6 +1060,7 @@ func main() {
 	fmt.Println(result1)
 	fmt.Println(result2)
 	fmt.Println(result3)
+
 	// Output:
 	// true
 	// true
@@ -1089,6 +1092,7 @@ func main() {
 
 	fmt.Println(result1)
 	fmt.Println(result2)
+
 	// Output:
 	// true
 	// false
@@ -1119,6 +1123,7 @@ func main() {
 
 	fmt.Println(result1)
 	fmt.Println(result2)
+
 	// Output:
 	// true
 	// false
@@ -1157,6 +1162,7 @@ func main() {
 	fmt.Println(result3)
 	fmt.Println(result4)
 	fmt.Println(result5)
+
 	// Output:
 	// 12
 	// 1

fileutil/file.go

@@ -180,7 +180,7 @@ func ListFileNames(path string) ([]string, error) {
 }
 
 // IsZipFile checks if file is zip or not.
-// Play: todo
+// Play: https://go.dev/play/p/9M0g2j_uF_e
 func IsZipFile(filepath string) bool {
 	f, err := os.Open(filepath)
 	if err != nil {
@@ -383,7 +383,7 @@ func CurrentPath() string {
 }
 
 // FileSize returns file size in bytes.
-// Play: todo
+// Play: https://go.dev/play/p/H9Z05uD-Jjc
 func FileSize(path string) (int64, error) {
 	f, err := os.Stat(path)
 	if err != nil {
@@ -393,7 +393,7 @@ func FileSize(path string) (int64, error) {
 }
 
 // MTime returns file modified time.
-// Play: todo
+// Play: https://go.dev/play/p/s_Tl7lZoAaY
 func MTime(filepath string) (int64, error) {
 	f, err := os.Stat(filepath)
 	if err != nil {
@@ -403,7 +403,7 @@ func MTime(filepath string) (int64, error) {
 }
 
 // MTime returns file sha value, param `shaType` should be 1, 256 or 512.
-// Play: todo
+// Play: https://go.dev/play/p/VfEEcO2MJYf
 func Sha(filepath string, shaType ...int) (string, error) {
 	file, err := os.Open(filepath)
 	if err != nil {
@@ -437,7 +437,7 @@ func Sha(filepath string, shaType ...int) (string, error) {
 }
 
 // ReadCsvFile read file content into slice.
-// Play: todo
+// Play: https://go.dev/play/p/OExTkhGEd3_u
 func ReadCsvFile(filepath string) ([][]string, error) {
 	f, err := os.Open(filepath)
 	if err != nil {

netutil/net.go

@@ -250,7 +250,7 @@ func DownloadFile(filepath string, url string) error {
 }
 
 // IsPingConnected checks if can ping specified host or not.
-// Play: todo
+// Play: https://go.dev/play/p/q8OzTijsA87
 func IsPingConnected(host string) bool {
 	cmd := exec.Command("ping", host, "-c", "4", "-W", "6")
 
@@ -266,7 +266,7 @@ func IsPingConnected(host string) bool {
 }
 
 // IsTelnetConnected checks if can telnet specified host or not.
-// Play: todo
+// Play: https://go.dev/play/p/yiLCGtQv_ZG
 func IsTelnetConnected(host string, port string) bool {
 	adder := host + ":" + port
 	conn, err := net.DialTimeout("tcp", adder, 5*time.Second)

slice/slice.go

@@ -338,7 +338,7 @@ func FindLast[T any](slice []T, predicate func(index int, item T) bool) (*T, boo
 // FindBy iterates over elements of slice, returning the first one that passes a truth test on predicate function.
 // If return T is nil or zero value then no items matched the predicate func.
 // In contrast to Find or FindLast, its return value no longer requires dereferencing
-// Play: todo
+// Play: https://go.dev/play/p/n1lysBYl-GB
 func FindBy[T any](slice []T, predicate func(index int, item T) bool) (v T, ok bool) {
 	index := -1
 
@@ -359,7 +359,7 @@ func FindBy[T any](slice []T, predicate func(index int, item T) bool) (v T, ok b
 // FindLastBy iterates over elements of slice, returning the last one that passes a truth test on predicate function.
 // If return T is nil or zero value then no items matched the predicate func.
 // In contrast to Find or FindLast, its return value no longer requires dereferencing
-// Play: todo
+// Play: https://go.dev/play/p/8iqomzyCl_s
 func FindLastBy[T any](slice []T, predicate func(index int, item T) bool) (v T, ok bool) {
 	index := -1
 

strutil/string.go

@@ -377,7 +377,7 @@ func RemoveNonPrintable(str string) string {
 }
 
 // StringToBytes converts a string to byte slice without a memory allocation.
-// Play: todo
+// Play: https://go.dev/play/p/7OyFBrf9AxA
 func StringToBytes(str string) (b []byte) {
 	sh := *(*reflect.StringHeader)(unsafe.Pointer(&str))
 	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
@@ -386,13 +386,13 @@ func StringToBytes(str string) (b []byte) {
 }
 
 // BytesToString converts a byte slice to string without a memory allocation.
-// Play: todo
+// Play: https://go.dev/play/p/6c68HRvJecH
 func BytesToString(bytes []byte) string {
 	return *(*string)(unsafe.Pointer(&bytes))
 }
 
 // IsBlank checks if a string is whitespace, empty.
-// Play: todo
+// Play: https://go.dev/play/p/6zXRH_c0Qd3
 func IsBlank(str string) bool {
 	if len(str) == 0 {
 		return true
@@ -408,7 +408,7 @@ func IsBlank(str string) bool {
 }
 
 // HasPrefixAny check if a string starts with any of an array of specified strings.
-// Play: todo
+// Play: https://go.dev/play/p/8UUTl2C5slo
 func HasPrefixAny(str string, prefixes []string) bool {
 	if len(str) == 0 || len(prefixes) == 0 {
 		return false
@@ -422,7 +422,7 @@ func HasPrefixAny(str string, prefixes []string) bool {
 }
 
 // HasSuffixAny check if a string ends with any of an array of specified strings.
-// Play: todo
+// Play: https://go.dev/play/p/sKWpCQdOVkx
 func HasSuffixAny(str string, suffixes []string) bool {
 	if len(str) == 0 || len(suffixes) == 0 {
 		return false
@@ -437,7 +437,7 @@ func HasSuffixAny(str string, suffixes []string) bool {
 
 // IndexOffset returns the index of the first instance of substr in string after offsetting the string by `idxFrom`,
 // or -1 if substr is not present in string.
-// Play: todo
+// Play: https://go.dev/play/p/qZo4lV2fomB
 func IndexOffset(str string, substr string, idxFrom int) int {
 	if idxFrom > len(str)-1 || idxFrom < 0 {
 		return -1